[R] merge function in R

[Juan Santiago Ramseyer]

Em Qui, 2006-06-01 às 05:59 -0700, Ahamarshan jn escreveu:
> hi list,
> 
> This question must be very basic but I am just 3 days
> old to R. I am trying to find a function to merge two
> tables of data in two different files as one.
> 
>  Does merge function only fills in colums between two
> table where data is missing or is there a way that
> merge can be used to merge data between two matrixes
> with common dimensions.
> 
> say i have
> 
>    v1 v2 v3 v4   
> h1
> h2
> h3
> h4
> h5
> 
> and and another table with 
> 
>    x1 x2 x3 x4
> h1
> h2
> h3
> h4
> h5
> 
> 
> can i merge the data as
> 
>    v1 x1 v2 x2 v3 x3 v4 x4
> h1
> h2
> h3
> h4
> h5
> 
> Thanks
> 
hi

testing the following sequence

# matrix examples
x <- seq(from=-1,to=-20,step =-1)
v <- seq(1:20)
dim(x) <- c(5,4)
dim(v) <- c(5,4)

vx <- rep(NA,times=40)
dim(vx) <- c(5,8)

# answer init
for (i in 1:4) {
  vx[,2*i-1] <- v[,i]
  vx[,2*i] <- x[,i]
}
# answer end

Juan Santiago Ramseyer
Eng. Recursos Hídricos


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